The Research and Design of Digital Signature Scheme Based on Biometrics
|Keywords||Biometric Fuzzy extractor Multiple biometric Identity - based signature|
Biometric its unique advantages to become the focus of concern in the field of information security . The research and design of biometric identity - based digital signature scheme . This article first briefly introduces several common biometric identification technology , compare the pros and cons of each authentication typical use of biometric authentication systems may be subject to attack , and then discusses a biometric - based key generation technology - fuzzy extractor can change biometric stable extracted distribution consistent with a strong key , and provides a new way for us to take advantage of biometric authentication . The author through the the fuzzy extractor extracted from the biometric the biological key cryptography significance , and applied to subsequent digital signature scheme . The fuzzy extractor was originally designed under the conditions of the local authentication , with the extensive application of the network , real-time requirements of the certification system is getting higher and higher , it shows some limitations , will lead to some security issues . Made a detailed introduction of the first fuzzy extraction techniques , and then raised in a non- secure channel the remote certification under the conditions of its improvements , then the improved fuzzy extractor extracts used in identity-based digital signature key programs. Showing their limitations in the practical application in view of a single biometric , can not meet the actual requirements , and therefore create a digital signature system based on multiple biometrics is necessary to design a digital signature scheme based on multiple biometric .